Unit Converter
Square Footage Calculator
Calculate rectangular area from length and width.
Formula and usage notes
area = length x width.
Calculate rectangular area from length and width.
Practical examples
18 by 14 equals 252 square units.
Use the same length unit for both inputs.
Convert inches to feet first when measuring rooms in mixed units.
Frequently asked questions
What inputs does this calculator need?
Length, Width.
How should I round the result?
Keep extra digits while comparing values, then round for the final decision or report.
Can I reuse the result in another calculation?
Yes, but preserve the original inputs and units so the next calculation stays traceable.